An Audi Aicon concept car is on display on the stand of Volkswagen during the first media day of the International Frankfurt Motor Show IAA in Frankfurt, Germany, Tuesday, Sept. 12, 2017, which runs through Sept. 24, 2017. (Image: AP)

AN I.D. Crozz is presented on the Volkswagen stand on the first media day of the International Frankfurt Motor Show IAA in Frankfurt, Germany, Tuesday, Sept. 12, 2017, which runs through Sept. 24, 2017. (Image: AP)

Juergen Stackmann, member of the board of the Volkswagen brand, presents the new Volkswagen Polo GTI during the first media day of the International Frankfurt Motor Show IAA in Frankfurt, Germany, Tuesday, Sept. 12, 2017, which runs through Sept. 24, 2017. (Image: AP)

Daimler CEO Dieter Zetsche walks past a Mercedes S560 4Matic Coupe during a press presentation at the Mercedes-Benz stand on the first media day of the Frankfurt Motor Show IAA in Frankfurt, Germany, Tuesday, Sept. 12, 2017. (Image: AP)

Formula One driver Lewis Hamilton leaves the Mercedes-AMG Project One hyper car after driving it onto the stage during the first media day of the International Frankfurt Motor Show IAA in Frankfurt, Germany, Tuesday, Sept. 12, 2017, which runs through Sept. 24, 2017. (Image: AP)

Visitors look at a Lamborghini Aventador S Roadster on the first media day of the International Frankfurt Motor Show IAA in Frankfurt, Germany, Tuesday, Sept. 12, 2017, which runs through Sept. 24, 2017. (Image: AP)